@article{DAN_1960_130_6_a7,
     author = {N. N. Ural'tseva},
     title = {Regularity of solutions of multidimensional elliptic equations and variational problems},
     journal = {Doklady Akademii Nauk},
     pages = {1206--1209},
     publisher = {mathdoc},
     volume = {130},
     number = {6},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_130_6_a7/}
}